This 16-bit buffer/driver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVCH16240A is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. This device provides inverting outputs and symmetrical active-low output-enable (OE) inputs.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
Widebus is a trademark of Texas Instruments.
| Technology family | LVC |
| Supply voltage (min) (V) | 2 |
| Supply voltage (max) (V) | 3.6 |
| Number of channels | 16 |
| IOL (max) (mA) | 24 |
| IOH (max) (mA) | -24 |
| Supply current (max) (µA) | 20 |
| Input type | Standard CMOS |
| Output type | 3-State |
| Features | Balanced outputs, Bus-hold, Very high speed (tpd 5-10ns) |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| SSOP (DL) | 48 | 164.358 mm² 15.88 x 10.35 |
| TSSOP (DGG) | 48 | 101.25 mm² 12.5 x 8.1 |